Terry Gross

The third and final installment of the Toy Story trilogy turned out to have some deep themes: death, abandonment, loss. One inspiration: an incident in which director Lee Unkrich accidentally threw out his wife's toys. Both Unkrich and screenwriter Michael Arndt join Terry Gross to talk about the trilogy, due on DVD Nov. 2.

Comedian Mike Birbiglia has a disorder that makes him sleepwalk. He recounts his worst episode — as well as other painfully embarrassing moments — in his comedic memoir, Sleepwalk With Me.

Roth, who has been writing novels for more than a half-century, explains how he comes up with his ideas — and why he continues to write every day. In his latest work, Nemesis, he imagines a fictional polio outbreak set in his hometown of Newark, N.J., during the 1940s.